Refrigerator car



Jan. 29, 1935. c. D, BoNsALL. REFRIGERATOR CAR Filed sept. e, 1952 Patented Jan. 29, 1935 AUNI,riez-@D STATES @PATENT REFRIGERATOR. CAB, Charles `David BonsalL Pittsburgh, Pa., assignor tov P. H,*Murphy;ompany, New

Kensington,

Pa.,.a corporation of' Pennsylvam Application September 9, 1932, Serial No. 632,27

' 5 claims. (arios-f5) This invention relates to refrigerator cars, and particularly to refrigerator cars having metallic self-sustaining roofs. Heretofore the insulation for such roofs has been sustained bysubcarlines,

5 `whichmake it necessary to apply the insulation before'the metal roof is` applied `and to remove said 'roof when `itis desired to repair or renew the insulation. The' invention has for its principal objects to support the entire roof insulalU tion from the metal roof, thereby dispensingwith thesub-carlines and thus saving Vthe cost and weight thereof. .Other objects `are to provide for the removal and replacement of the insulation without disturbing the metal roof. The invention l consists principally in the combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification and wherein like symbols refer to like parts'wherever they occur,

Fig. 1 is a vertical cross-sectional view of the upper portion of a refrigerator car embodying my invention; and

Fig. 2 is a vertical longitudinal'section through said roof on the line 2 2 in Fig. 1.

Referring to the accompanying drawing, my invention is shown in connection with a refrigerator car provided with a single-course metal roof d comprising metal load-sustaining roof sheets 1 0 car and having upstanding ilanges'2 along their adjacent side margins that are straddled by inverted U-shaped seam caps 3 that have outstanding base anges 4 that rest upon the adjacent side marginal portions of said roof sheets. The seam caps 3 are rigidly secured to the upstanding side seam flanges 2 of adjacent roof sheets l by rivets 5 that extend horizontally through said seam caps and said side seam anges. The eaves end 40 portions of the roof sheets rest upon and are secured by rivets 6 to the sloping top flange of eaves angle strips 7, whose vertical anges are secured to the outer faces of the wooden side plates 8 of the car by means ofv horizontal bolts 9. The

45 eaves ends of the roof 3 are bent downwardly over the outer edges of the top flanges of the eaves angles 7. The lower p0rtions of the eaves angles are offset outwardly so as to cover the upper ends of the side sheathing 10; and fascia boards ll are secured to the side plates 8 between the side sheathing and the depending eaves vilanges of the roof sheets.

The roof insulation is sustained entirely from the single-course metal roof of the car by means of hanger plates 12 that are embodied in each of ona layer 14 of relatively rigid insulating mate` that slope downwardly from ridge to eaves of the sheets l and seam caps.

the upstanding roof seams and serve to impart additional strength `and rigidity thereto.v Each of these hanger plates 12Hext'ends substantially from the inner face of the sideplate to the ridge of the car and is secured within the seam by "5 means of the rivets 5`that secure, the seam cap to the roof sheet liiangesstraddled thereby. rlfhe roof insulation comprises a plurality. of layersj13 of relatively flexible insulating material supported l0y rial. The insulation is made in sections arranged between thehanger jplates 12 of adjacent roof seams andsupportedat their'edgeson wooden strips 15 that have longitudinal kerfs 16 in their upper surface adapted to receive the lower mar- 15 ginal portions of said hanger plates. The wooden strips 15 are removably secured to the hanger plates 12 by horizontal bolts 17; and a woodenl ceiling 18 is nailed to the undersides of the strips, forming dead air insulating spaces 19 between adjacent strips. The layer 14 of relatively rigid insulation is supported on the tops of the wooden strips 15, and the layers of relatively exible insulation 13 ll the space between the rigid insulation and the metal roof.

By the arrangement described, the roof insulation is supported entirely by the metal roof, thereby dispensing with the use of the subcarlines heretofore employed to support such insulation. The insulation may be quickly and easily attached to and removed from the car without disturbing the metal roof; and the insulation is made in sections so that one section can be removed and replaced without removing the other sections.

What I claim is:

1. A refrigerator car comprising side plates, a self-supporting metal roof extending from side plate to side plate, a series of hanger plates embodied in said roof and extending transversely thereof between said side plates, said hanger plates extending below the underside of said roof, wooden strips extending transversely of said car and provided with kerfs adapted to receive the lower portions of said hanger plates, horizontal bolts for removably securing said wooden strips to said hanger plates, kand insulation supported on the tops of said wooden strips.

2. A refrigerator car comprising side plates, a self-supporting metal roof extending from side plate to side plate, a series of hanger plates embodied in said roof and extending transversely thereof between said side plates, said hanger plates extending below the underside of said roof, wooden strips extending transversely of said car and provided with kerfs adapted to receive the 55 oFFsl lower portions of said hanger plates, horizontal bolts for removably securing said wooden strips to said hanger plates, and insulation supported on the tops of said wooden strips said insulation comprising a layer of relatively rigid insulating material resting on the tops of adjacent wooden strips and layers of relatively flexible insulating material between said rigid material and the underside of said roof. 1 y

3. A refrigerator car comprising side plates, a self-supporting metal roof extending from side plate to side plate, a series of hanger plates embodied in said roof and extending transversely thereof between said side plates, said hanger plates extending below the underside of said roof,

wooden strips extending transversely of said car and provided with kerfs adapted to receive the lower portions of said hanger plates, horizontal bolts for removably securing said wooden strips to said hanger plates, and insulation supported on the tops of said wooden strips, said insulation comprising a layer of relatively rigid insulating material resting on the tops of adjacent wooden strips and layers of relatively flexible insulating material between said rigid material and the underside of said roof, and a ceiling secured to the undersides of said wooden strips. y

j 4. A refrigerator car comprising side plates, a self-.supporting metal` roofextending from side plate to side plate, a series of hanger plates embodied in the roof seams and extending below the underside of said roof, wooden strips extending transversely of said car and removably secured to said hanger plates to be suspended therefrom, and insulation supported on said strips and substantially iilling the space between the underside of said roof and the tops of said strips, said insulation comprising a layer of relatively rigid insulation extending between adjacent side plates and between adjacent hanger plates and a plurality of layers of relativelyA exible insulation interposed between said rigidinsulation and the underside of said roof, the means forrernovably securing said strips to said plates being lower than the insulation so as to be readily accessible, said insulation being removable upon removal of the wooden strips without disturbing the roof.

5. A refrigerator car comprising side plates, a self-supporting metal roof extending from side plate to sideplate, a series of metal plates embodied in the roof seams and extending below the underside of said roof, wooden strips extending longitudinally of said metal plates with their tops above the lower edges of said plates but at a distance below the roof, horizontal bolts for removably securing said `wooden strips to said metal plates, and layers of insulation supported on the tops of said wooden strips Vand substantially filling the space between the underside of said roof and the tops of said strips, andla ceiling secured to the underside of said wooden strips with air spaces between said ceiling and the insulation, said insulation being removable upon removal of the wooden strips without disturbing the roof.

CHARLES DAVID BONSALL. 

